thanks for all the replys. the problems i am having are when driving the car it will suddenly now and again start to hesitate and not acclerate as it should it feels like something is holding it back it revs fine but just want go anywhere and after a while it will go and the car will be ok again. i do have a eml light on and the codes are p0316 and p0141 but i cant find anywhere online to find out what the codes are .